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3. Neurological complications following spinal anaesthesia with lidocaine. A prospective review of 10 440 cases;Phillips, O.C.; Ebner, H.; Nelson, A.T.; Black, M.H.;Anaesthesiology
4. Prolonged post-lumbar puncture cerebrospinal fluid leakage from the subarachnoid space demonstrated by radioisotope myelography;Leiberman, L.M.; Tourtellotte, W.W.; Newkirk, T.A.;Neurology,1971